public class TestBall {
    public static void main(String args[]) {
		Ball b1 = new Ball();
		SoccerBall b2 = new SoccerBall();
		Ball b3 = new SoccerBall();
                b1.throwball();
                b2.throwball();
                b3.throwball();
              //b4.throwball();
    }
}
